/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.gluten.extension

import org.apache.gluten.execution.DeltaScanTransformer
import org.apache.gluten.extension.columnar.offload.OffloadSingleNode

import org.apache.spark.sql.delta.DeltaParquetFileFormat
import org.apache.spark.sql.execution.{FileSourceScanExec, SparkPlan}

case class OffloadDeltaScan() extends OffloadSingleNode {
  override def offload(plan: SparkPlan): SparkPlan = plan match {
    case scan: FileSourceScanExec
        if scan.relation.fileFormat.getClass == classOf[DeltaParquetFileFormat] =>
      DeltaScanTransformer(scan)
    case other => other
  }
}
